<template>
  <div class="page-login">
    <div class="page-login--layer page-login--layer-area">
      <ul class="circles">
        <li v-for="n in 10" :key="n"></li>
      </ul>
    </div>
    <div
      class="page-login--layer page-login--layer-time"
      flex="main:center cross:center">
      {{ time }}
    </div>
    <div class="page-login--layer">
      <div
        class="page-login--content"
        flex="dir:top main:justify cross:stretch box:justify">
        <div class="page-login--content-header">
          <p class="page-login--content-header-motto">
            {{ wordcloud }}
          </p>
        </div>
        <div
          class="page-login--content-main"
          flex="dir:top main:center cross:center">
          <!-- logo -->
          <!--          <img class="page-login&#45;&#45;logo" src="./image/logo@2x.png">-->
          <echarts-font text="OPSCLOUD" :font-size="50" font-color="#2a6cd9"></echarts-font>
          <!--          <div style="font-size: 30px; color: #2a6cd9;margin-bottom: 10px">OPSCLOUD 4 IaC</div>-->
          <!-- form -->
          <div class="page-login--form">
            <el-card shadow="never">
              <el-form
                ref="loginForm"
                label-position="top"
                :rules="rules"
                :model="formLogin"
                size="default">
                <el-form-item prop="username">
                  <el-input
                    type="text"
                    v-model="formLogin.username"
                    placeholder="用户名">
                    <i slot="prepend" class="fas fa-user-circle"></i>
                  </el-input>
                </el-form-item>
                <el-form-item prop="password">
                  <el-input
                    type="password"
                    v-model="formLogin.password"
                    placeholder="密码">
                    <i slot="prepend" class="fas fa-keyboard"></i>
                  </el-input>
                </el-form-item>
                <el-form-item prop="code">
                  <el-input type="text"
                            v-model="formLogin.code"
                            placeholder="OTP Access Code">
                    <!--                    <template slot="append">-->
                    <!--                      <img class="login-code" src="./image/login-code.png">-->
                    <!--                    </template>-->
                  </el-input>
                </el-form-item>
                <!--                <el-form-item prop="code">-->
                <!--                  <el-input-->
                <!--                    type="text"-->
                <!--                    v-model="formLogin.code"-->
                <!--                    placeholder="验证码">-->
                <!--                    <template slot="append">-->
                <!--                      <img class="login-code" src="./image/login-code.png">-->
                <!--                    </template>-->
                <!--                  </el-input>-->
                <!--                </el-form-item>-->
                <el-button
                  size="default"
                  @click="submit"
                  type="primary"
                  :loading="loading"
                  class="button-login">
                  登录
                </el-button>
              </el-form>
            </el-card>
            <p
              class="page-login--options"
              flex="main:justify cross:center">
              <span v-show="false"><d2-icon name="question-circle"/> 忘记密码</span>
              <span v-show="false">注册用户</span>
              <span>注册用户、忘记密码请联系运维</span>
            </p>
            <!-- quick login -->
            <!--            <el-button class="page-login&#45;&#45;quick" size="default" type="info" @click="dialogVisible = true">-->
            <!--              快速选择用户（测试功能）-->
            <!--            </el-button>-->
          </div>
        </div>
        <div class="page-login--content-footer">
          <p class="page-login--content-footer-locales">
            <a
              v-for="language in $languages"
              :key="language.value"
              @click="onChangeLocale(language.value)">
              {{ language.label }}
            </a>
          </p>
          <!--          <p class="page-login&#45;&#45;content-footer-copyright">-->
          <!--            Copyright-->
          <!--            <d2-icon name="copyright"/>-->
          <!--            2018 D2 Projects 开源组织出品-->
          <!--            <a href="https://github.com/FairyEver">-->
          <!--              @FairyEver-->
          <!--            </a>-->
          <!--          </p>-->
          <!--          <p class="page-login&#45;&#45;content-footer-options">-->
          <!--            <a href="#">帮助</a>-->
          <!--            <a href="#">隐私</a>-->
          <!--            <a href="#">条款</a>-->
          <!--          </p>-->
        </div>
      </div>
    </div>
    <!--    <el-dialog-->
    <!--      title="快速选择用户"-->
    <!--      :visible.sync="dialogVisible"-->
    <!--      width="400px">-->
    <!--      <el-row :gutter="10" style="margin: -20px 0px -10px 0px;">-->
    <!--        <el-col v-for="(user, index) in users" :key="index" :span="8">-->
    <!--          <div class="page-login&#45;&#45;quick-user" @click="handleUserBtnClick(user)">-->
    <!--            <d2-icon name="user-circle-o"/>-->
    <!--            <span>{{user.name}}</span>-->
    <!--          </div>-->
    <!--        </el-col>-->
    <!--      </el-row>-->
    <!--    </el-dialog>-->
  </div>
</template>

<script>
import dayjs from 'dayjs'
import { mapActions } from 'vuex'
import localeMixin from '@/locales/mixin.js'
import ui from '@/libs/util.ui'
import EchartsFont from '@/components/opscloud/common/EchartsFont'

const wordcloud = [
  '顺其自然'
]

export default {
  components: { EchartsFont },
  mixins: [
    localeMixin
  ],
  data () {
    return {
      wordcloud: wordcloud[Math.floor((Math.random() * wordcloud.length))],
      timeInterval: null,
      loading: false,
      time: dayjs().format('HH:mm:ss'),
      // 快速选择用户
      // dialogVisible: false,
      // users: [
      //   {
      //     name: 'Admin',
      //     username: 'admin',
      //     password: 'admin'
      //   },
      //   {
      //     name: 'Editor',
      //     username: 'editor',
      //     password: 'editor'
      //   },
      //   {
      //     name: 'User1',
      //     username: 'user1',
      //     password: 'user1'
      //   }
      // ],
      // 表单
      formLogin: {
        username: '',
        password: '',
        code: ''
      },
      // 表单校验
      rules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          }
        ]
        // password: [
        //   {
        //     required: true,
        //     message: '请输入密码',
        //     trigger: 'blur'
        //   }
        // ],
        // code: [
        //   {
        //     required: true,
        //     message: '请输入验证码',
        //     trigger: 'blur'
        //   }
        // ]
      }
    }
  },
  mounted () {
    this.timeInterval = setInterval(() => {
      this.refreshTime()
    }, 1000)
  },
  beforeDestroy () {
    clearInterval(this.timeInterval)
  },
  methods: {
    ...mapActions('d2admin/account', [
      'login'
    ]),
    refreshTime () {
      this.time = dayjs().format('HH:mm:ss')
    },
    /**
     * @description 接收选择一个用户快速登录的事件
     * @param {Object} user 用户信息
     */
    handleUserBtnClick (user) {
      this.formLogin.username = user.username
      this.formLogin.password = user.password
      this.submit()
    },
    /**
     * @description 提交表单
     */
    // 提交登录信息
    submit () {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true
          // 登录
          // 注意 这里的演示没有传验证码
          // 具体需要传递的数据请自行修改代码
          this.login({
            username: this.formLogin.username,
            password: this.formLogin.password,
            otp: this.formLogin.code
          }).then(() => {
            // 重定向对象不存在则返回顶层路径
            this.$router.replace(this.$route.query.redirect || '/')
            // 初始化菜单
            ui.init()
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          // 登录表单校验失败
          this.$message.error('表单校验失败，请检查')
        }
      })
    }
  }
}
</script>

<style lang="scss">
.page-login {
  @extend %unable-select;
  $backgroundColor: #F0F2F5;
  // ---
  background-color: $backgroundColor;
  height: 100%;
  position: relative;
  // 层
  .page-login--layer {
    @extend %full;
    overflow: auto;
  }

  .page-login--layer-area {
    overflow: hidden;
  }

  // 时间
  .page-login--layer-time {
    font-size: 24em;
    font-weight: bold;
    color: rgba(0, 0, 0, 0.03);
    overflow: hidden;
  }

  // 登陆页面控件的容器
  .page-login--content {
    height: 100%;
    min-height: 500px;
  }

  // header
  .page-login--content-header {
    padding: 1em 0;

    .page-login--content-header-motto {
      margin: 0px;
      padding: 0px;
      color: $color-text-normal;
      text-align: center;
      font-size: 12px;
    }
  }

  // main
  .page-login--logo {
    width: 240px;
    margin-bottom: 2em;
    margin-top: -2em;
  }

  // 登录表单
  .page-login--form {
    width: 280px;
    // 卡片
    .el-card {
      margin-bottom: 15px;
    }

    // 登录按钮
    .button-login {
      width: 100%;
    }

    // 输入框左边的图表区域缩窄
    .el-input-group__prepend {
      padding: 0px 14px;
    }

    .login-code {
      height: 40px - 2px;
      display: block;
      margin: 0px -20px;
      border-top-right-radius: 2px;
      border-bottom-right-radius: 2px;
    }

    // 登陆选项
    .page-login--options {
      margin: 0px;
      padding: 0px;
      font-size: 14px;
      color: $color-primary;
      margin-bottom: 15px;
      font-weight: bold;
    }

    .page-login--quick {
      width: 100%;
    }
  }

  // 快速选择用户面板
  .page-login--quick-user {
    @extend %flex-center-col;
    padding: 10px 0px;
    border-radius: 4px;

    &:hover {
      background-color: $color-bg;

      i {
        color: $color-text-normal;
      }

      span {
        color: $color-text-normal;
      }
    }

    i {
      font-size: 36px;
      color: $color-text-sub;
    }

    span {
      font-size: 12px;
      margin-top: 10px;
      color: $color-text-sub;
    }
  }

  // footer
  .page-login--content-footer {
    padding: 1em 0;

    .page-login--content-footer-locales {
      padding: 0px;
      margin: 0px;
      margin-bottom: 15px;
      font-size: 12px;
      line-height: 12px;
      text-align: center;
      color: $color-text-normal;

      a {
        color: $color-text-normal;
        margin: 0 .5em;

        &:hover {
          color: $color-text-main;
        }
      }
    }

    .page-login--content-footer-copyright {
      padding: 0px;
      margin: 0px;
      margin-bottom: 10px;
      font-size: 12px;
      line-height: 12px;
      text-align: center;
      color: $color-text-normal;

      a {
        color: $color-text-normal;
      }
    }

    .page-login--content-footer-options {
      padding: 0px;
      margin: 0px;
      font-size: 12px;
      line-height: 12px;
      text-align: center;

      a {
        color: $color-text-normal;
        margin: 0 1em;
      }
    }
  }

  // 背景
  .circles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    margin: 0px;
    padding: 0px;

    li {
      position: absolute;
      display: block;
      list-style: none;
      width: 20px;
      height: 20px;
      background: #FFF;
      animation: animate 25s linear infinite;
      bottom: -200px;
      @keyframes animate {
        0% {
          transform: translateY(0) rotate(0deg);
          opacity: 1;
          border-radius: 0;
        }
        100% {
          transform: translateY(-1000px) rotate(720deg);
          opacity: 0;
          border-radius: 50%;
        }
      }

      &:nth-child(1) {
        left: 15%;
        width: 80px;
        height: 80px;
        animation-delay: 0s;
      }

      &:nth-child(2) {
        left: 5%;
        width: 20px;
        height: 20px;
        animation-delay: 2s;
        animation-duration: 12s;
      }

      &:nth-child(3) {
        left: 70%;
        width: 20px;
        height: 20px;
        animation-delay: 4s;
      }

      &:nth-child(4) {
        left: 40%;
        width: 60px;
        height: 60px;
        animation-delay: 0s;
        animation-duration: 18s;
      }

      &:nth-child(5) {
        left: 65%;
        width: 20px;
        height: 20px;
        animation-delay: 0s;
      }

      &:nth-child(6) {
        left: 75%;
        width: 150px;
        height: 150px;
        animation-delay: 3s;
      }

      &:nth-child(7) {
        left: 35%;
        width: 200px;
        height: 200px;
        animation-delay: 7s;
      }

      &:nth-child(8) {
        left: 50%;
        width: 25px;
        height: 25px;
        animation-delay: 15s;
        animation-duration: 45s;
      }

      &:nth-child(9) {
        left: 20%;
        width: 15px;
        height: 15px;
        animation-delay: 2s;
        animation-duration: 35s;
      }

      &:nth-child(10) {
        left: 85%;
        width: 150px;
        height: 150px;
        animation-delay: 0s;
        animation-duration: 11s;
      }
    }
  }
}
</style>
